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All Journal Jurnal Natur Indonesia Jurnal Teknik Kimia USU Komunikasi Fisika Indonesia Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Jurnal Pengabdian UntukMu NegeRI ALCHEMY Jurnal Penelitian Kimia IJEBA (International Journal of Economic, Business & Applications) JURNAL PHOTON Acta Biochimica Indonesiana Acta Chimica Asiana Jurnal Inovasi Pendidikan dan Sains Journal of Applied Materials and Technology Jurnal UNITEK KATALIS: Jurnal Penelitian Kimia dan Pendidikan Kimia Dinamika Lingkungan Indonesia Jurnal Teknik Kimia USU International Journal of Renewable Energy Development al Kimiya : Jurnal Ilmu Kimia dan Terapan
Amir Awaluddin
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Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Social Sciences

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Journal : Journal of Applied Materials and Technology

 1 
Metal-Free Activated Carbon Catalytic for Degradation of Organic Contaminants by Peroxydisulfate Activation Prawiranegara, Barata Aditya; Setia Utama, Panca; Amri, Amun; Nurhayati; Muhdarina; Awaluddin, Amir; Saputra, Edy
Journal of Applied Materials and Technology Vol. 5 No. 1 (2023): September 2023
Publisher : Faculty of Engineering Universitas Riau and Applied Materials and Technology Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/Jamt.5.1.20-26

Abstract

Green chemistry has become trending recently, and the discovery of environmentally friendly catalysts is mandatory. Activated carbons (ACs) are one of the most environmentally friendly yet cheap materials that have the potential for catalyst application. Three commercially available ACs from Pancasari, Norit, and Chemical Supply were used as metal-free catalysts for advanced oxidation process (AOP) phenol removal in water in the presence of oxidants peroxydisulfate (PDS), and hydrogen peroxide (H2O2). It was found that ACs were effective to be used as catalysts for activating those oxidants to oxidize phenol in AOP reactions. In this study, the surface area of the catalyst significantly improved the phenol removal efficiency. ACs Pancasari (ACP) with the highest surface area has the best degradation performance of phenol removal with up to 99% removal efficiency in 60 minutes under the condition of [phenol] = 30 mg L-1, [ACP] = 0.2 g L-1, [PDS] = 3.3 mmol L-1, and T = 25oC. it was also found that the degradation process was significantly influenced by reaction temperature. Nevertheless, in this study, ACs display the potential as catalysts in the AOP process for wastewater treatments.
Redox-driven formation of hausmannite-type manganese oxide and its catalytic performance Awaluddin, Amir; Ilahi, Aulia Nur; Fachran Putra Deraf, Ivano; Siregar, Siti Saidah; Saputra, Edy
Journal of Applied Materials and Technology Vol. 6 No. 2 (2025): March 2025
Publisher : Faculty of Engineering Universitas Riau and Applied Materials and Technology Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/Jamt.6.2.64-70

Abstract

Various manganese oxides have been reported to be an active catalyst for degradation of a dye. The synthetic manganese oxides can be conducted by several methods with the products having the different physicochemical properties and structures. This research focused on the synthesis of  hausmanite-type manganese oxide (Mn2O3)  by hydrothermal method with different mole  ratio  of  KMnO4/glucose (3:1 and 2:3) and its application as a Fenton catalyst   for the degradation of methylene blue (MB). The as-synthesized manganese oxides were then characterized  by XRD for their structure and crystallinity and FTIR and Raman spectroscopy for the lattice vibrations. The average oxide state (AOS) of manganese in the as-synthesized manganese oxide was determined by the back titration method. The XRD results indicated  the presence of mixed phases with hausmanite  phase as major component and  cryptomelane and birnessite phases as minor ones. FTIR spectroscopy results showed the presence of O-Mn vibrations at wavelengths of 468 cm-1, 487cm-1, and 726 cm-1. In addition, Raman spectroscopy results clearly showed the  specific vibrations of hausmanite at 655 cm-1 and 653 cm-1, respectively. The low value of  Mn AOS was obtained when the oxide was prepared in low ratio KMnO4/glucose and short reaction time. The as-synthesized hausmanite was  tested  as the Fenton catalyt for the degradation of MB.  The as-synthesized hausmanite synthesized with different mole rasio and reaction time showed similar catalytic activity for the degradation of MB with the highest MB degradation of 90.76%
Co-Authors ', Itnawita ', Padil ', Wahyuni - Hafizhah -, Presetya - . Zulfan Adrianto Ahmad Adrianto Ahmad Afandi, Trisno Afra Juwita Aisyah Fitrida Akmal Muchtar Aman Aman Aman Aman Amilia Linggawati Amiruddin, Erwin Amun Amri Anna Ridha Utami Arif Kurnia Auzar, Auzar Dian Anggraini Elis Damayanti Emrizal M. Tamboesai Emrizal Mahidin Tamboesai Endang Maya Sari Erwin Amiruddin Fachran Putra Deraf, Ivano Fachry Abda El Rahman Febrina, Wetri Hadilala, Teguh P Hafizhah, - Halida Sophia Hartini Azhar Hasan Yilmas Ilahi, Aulia Nur Irawati Suherman Itnawita Itnawita ' M. Zulfikri Mokhamad Subkhan Monita Olivia Muhammad Rizki Muhdarina Muhdarina Muhdarina Mukhlis Mulyani, Yenni Muras , Yuharmen Nainggolan, Fernando Nasution, Musyirna Nova Wahyu Pratiwi Nova Wahyu Pratiwi Novianty, Riryn Nurhayati Nurhayati Nurhayati Nurwijayanti Pepi Helza Yanti Pepi Helza Yanti Prasetya, Prasetya Prawiranegara, Barata Aditya Presetya - - Rahmat, Nahzim Rahmondia N. Setiadi Ramadhanti, Aulia Rizki Riska Anggraini Riska Anggraini, Riska Rita Marlina Rosa Murwindra, Rosa Rudi Rahmadi Saryono Saryono Saryono Saryono ' Saryono Saryono Saryono, M.Or. S.Pd. Jas. Setia Utama, Panca Silvera Devi Siregar , Sri Hilma Siregar, Siti Saidah Siregar, Siti Saidah Siregar, Sri Hilma Slamet Wahyuningsih Sri Nelvia Subkhan, Mokhamad Suci Apriani Suci Apriani Tengku Abu Hanifah Wahyu Pratiwi , Nova Wisnu Aditya Yilmas, Hasan Yuli Haryani Zuchra Helwani, Zuchra Zulfan Saam Auzar